todo FI Day 5

gistfile1.txt

def normalize_phone_number(number)
  array = number.split("")
  finalnum = []
  
  array.each do |var|
    if "1,2,3,4,5,6,7,8,9,0".include?(var)
      finalnum << var
    end
  end

    finalnum.insert(0, "(")
    finalnum.insert(4, ")")
    finalnum.insert(5, " ")
    finalnum.insert(9, "-")
    finalnum.join("")
end